This compound can be obtained in two different ways: 1) The reaction of cyclopropylmethyl ketone oxime (II) with epibromohydrin (A) in THF containing NaH gives O-[2,3-epoxypropyl]cyclopropylmethyl ketone oxime (III), which is treated with excess tert-butylamine (C) in ethanol yielding the final compound. 2) By condensation of cyclopropylmethyl ketone (I) with 3-(aminooxy)-N-tert-butyl-2-hydroxypropanamine (B) in ethanol.